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Lunar theory attempts to account for the motions of the Moon. There are many small variations (or perturbations ) in the Moon's motion, and many attempts have been made to account for them. After centuries of being problematic, lunar motion can now be modeled to a very high degree of accuracy (see section Modern developments ).
The Moon has free physical librations that require one or more stimulating mechanisms. [45] Tidal dissipation in the Moon depends on tidal frequency. [42] The Moon probably has a liquid core of about 20% of the Moon's radius. [11] The radius of the lunar core-mantle boundary is determined as 381 ± 12 km. [46]
John William Draper (May 5, 1811 – January 4, 1882) was an English scientist, philosopher, physician, chemist, historian and photographer.He is credited with pioneering portrait photography (1839–40) and producing the first detailed photograph of the moon in 1840.
This was known as the 'radiating influence' theory in ancient China, which stated that the light of the Moon was merely the light reflected from the Sun and that the celestial bodies were spherical. This accurate theory was dismissed by the philosopher Wang Chong (27–97 AD), yet embraced by the mathematician, inventor, and scientist Zhang ...
Soil studied by India’s Chandrayaan-3 mission near the lunar south pole adds support to the theory that the moon once had a magma ocean billions of years ago. Data from India’s historic moon ...
The particle theory of light led Pierre-Simon Laplace to argue that a body could be so massive that light could not escape from it. In other words, it would become what is now called a black hole . Laplace withdrew his suggestion later, after a wave theory of light became firmly established as the model for light (as has been explained, neither ...
A transient lunar phenomenon (TLP) or lunar transient phenomenon (LTP) is a short-lived change in light, color or appearance on the surface of the Moon. The term was created by Patrick Moore in his co-authorship of NASA Technical Report R-277 Chronological Catalog of Reported Lunar Events , published in 1968.
Sunlight reflects off objects on the moon the same way it does here on Earth. So all of these images and videos include light reflecting from Earth, the lunar module, and from the dust on the surface.